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Added 4 mins ago
ZS
Human resources development and planning director
Zenith System Solutions
Toronto, ON
- From $57.7 CAD / hour
- Full-time
- On-site
Added 9 mins ago
A
Management Consulting Senior Analyst (CPA Candidate)
Accenture
Ottawa, ON · Toronto, ON
- Full-time
Added 24 mins ago
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UO
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- Full-time
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Manager, Health & Safety
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Senior Project Coordinator
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Software Analyst
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Toronto, ON
- Full-time
…the railway signaling domain. Working under the guidance of a Senior Software Analyst or Technical Specialist, the incumbent develops expertise in one or more subsystem functional areas and…
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Principal AI/ML Engineer
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- Full-time
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Added 2 hours ago
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General Counsel
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- Full-time
Serve as the principal legal advisor to the CEO and senior leadership team.
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Senior Narrative Designer – Unannounced project
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Montreal, QC
- Full-time
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Added 3 hours ago
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Senior software developer
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Toronto, ON
- From $130,000 CAD / year
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Added 3 hours ago
HT
IT Internal Auditor
Husky Technologies
Bolton, ON
- Full-time
…model. You will be part of a global team and report to the Senior Manager; IT Audit located in Bolton. The Senior Manager, IT Audit reports to the VP, Internal Audit, who reports to the…
Added 3 hours ago
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Financial Manager - PLM (Product Line Mgmt)
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FOH Management - General Manager Designate
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- Full-time
The Senior Leadership team is here to train and mentor you, while supporting your life goals. Our restaurants are industry leaders in team development and offer unique opportunities for…
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Designer, Development (Electrical)
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Bolton, ON
- Full-time
The Senior Designer, Development (Electrical) will be a key contributor to these product development teams, responsible for designing and delivering robust, safe and reliable electrical…
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Calgary, AB
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Senior Platform Engineer
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Montreal, QC
- Full-time
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Geomodeller/Structural Geologist
GEI Consultants, Inc.
Listowel, ON
- $90,000 to $115,000 CAD / year
- Full-time
We are seeking an intermediate to senior-level geo-modeller/structural geologist to be part of our team of experts. The successful candidate will lead projects in Canada and worldwide in…
Added 4 hours ago
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Health Care Aide - HCA
West Coast Seniors Housing Management Limited Partnership
Victoria, BC
- $31.64 CAD / hour
Added 4 hours ago
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Server
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Victoria, BC
- $25.82 CAD / hour
Added 4 hours ago
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Recreation Aide
West Coast Seniors Housing Management Limited Partnership
White Rock, BC
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experience in a senior’s focused environment an asset.
Added 4 hours ago
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Community Relations Manager
West Coast Seniors Housing Management Limited Partnership
White Rock, BC
- $60,000 to $65,000 CAD / year
- Full-time
Previous experience in senior housing is an asset.
Added 4 hours ago
ME
General Manager - Edmonton South MEC
Mountain Equipment Company
Edmonton, AB
- $89,500 to $112,200 CAD / year
…expectations, building leadership capability, and holding the Senior Staff Team (SST) accountable for consistent execution across all areas of the business. You are responsible for…

123Dentist

Infrastructure Architect

Toronto, ON, Canada

$150,000 to $175,000 CAD / year · Full-time

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Job details

Pay: $150,000 to $175,000 CAD / year
Job type: Full-time
Posting language: English
Posted: Sep 21, 2026

Original job description

Job Title: Infrastructure Architect

Team: Technology Services (Information Technology)

Reports To: Senior Infrastructure Engineering Manager

Location: Toronto, Ontario. (4 days in office, 1 day remote)

Employment Type: Permanent Full-Time

About 123Dentist

123Dentist is the largest majority Canadian-owned dental support organization, supporting a growing network of 400+ dental practices across the country. As we continue to expand, both organically and through acquisition, our IT team plays a central role in standardizing, securing, and scaling the technology that our clinics and corporate teams rely on every day.

About the Role

The Infrastructure Architect is the senior technical engineer for 123Dentist’s server, identity, cloud, and network infrastructure, combining deep hands-on design and engineering with escalation support and project delivery across a Microsoft-centric, multi-site environment.

The role is balanced across three areas: infrastructure transformation and project delivery (cloud migrations, identity modernization, endpoint-management standardization), Tier 2/3 escalation support for the most complex infrastructure, identity, cloud, and network issues, and mergers & acquisitions / practice integration, onboarding newly acquired practices into the 123Dentist environment. Operating with significant independence, you’ll act as a trusted technical authority, mentoring infrastructure engineers, service desk analysts, and operations team members while championing sound engineering standards, security, and reliability.

What You’ll Do

Serve as the Tier 2/3 escalation point for complex infrastructure, identity, cloud, and network incidents, driving them through to root-cause resolution
Diagnose and resolve advanced issues across Windows Server, Active Directory, Entra ID, Microsoft Intune, Microsoft 365, Azure, and the LAN/WAN and firewall layers
Lead major-incident response for infrastructure-impacting outages, coordinating with IT and business stakeholders and communicating status clearly to leadership
Mentor and coach Tier 1 and Tier 2 analysts, producing runbooks and technical documentation that build the team’s troubleshooting capability
Independently design, plan, and deliver infrastructure transformation initiatives across on-premises and cloud, including server consolidation, migrations, identity modernization, endpoint-management standardization, and network refreshes
Engineer and administer Microsoft Azure infrastructure, including landing zone design, virtual machines, networking, storage, backup, and cost optimization
Lead hybrid identity initiatives spanning on-premises Active Directory and Entra ID, including conditional access, MFA, and RBAC
Modernize and standardize endpoint management through Microsoft Intune, and automate provisioning and configuration using PowerShell and infrastructure-as-code
Lead the technical engineering workstream to integrate newly acquired practices into the 123Dentist environment, including identity, endpoints, network, and core systems
Partner with IT leadership and the Corporate Development / M&A team on due-diligence and integration planning, standardizing and securing clinic infrastructure as new sites join the network

What You Bring

Bachelor’s degree in Information Technology, Computer Science, or a related field, or equivalent hands-on experience
7–8+ years in systems/infrastructure engineering or senior systems administration, including hands-on Tier 2/3 escalation in a Microsoft-centric enterprise environment
Demonstrated experience independently leading infrastructure transformation projects spanning multiple teams or departments (cloud adoption/migrations, identity or endpoint modernization, network refreshes)
Experience supporting a multi-site, distributed environment (healthcare, DSO, retail, or similar) is an asset; experience with M&A / site integration is a strong asset
Expert-level Windows Server administration and deep hybrid identity expertise (on-premises Active Directory and Entra ID, conditional access, MFA, RBAC)
Strong Microsoft Azure engineering skills, including IaaS, virtual networking, storage, backup, security, and cost management
Experience with Microsoft Intune / modern endpoint management and LAN/WAN and network engineering (routing, VLANs, VPN, DNS/DHCP, firewalls)
PowerShell scripting and automation experience, with working familiarity in endpoint security, backup/DR, and ITSM tooling
Microsoft certifications (e.g., AZ-104/AZ-305, MD-102, SC-300) or equivalent networking/security certifications (CCNA, Security+, ITIL) are an asset
Strong sense of ownership, excellent analytical and problem-solving abilities, and a collaborative approach to mentoring across teams

Why Join 123Dentist?

Play a central, high-visibility role in modernizing IT infrastructure for a fast-growing national organization
Operate with real autonomy as a trusted senior technical authority
Work across a modern, cutting-edge cloud, identity, and endpoint technology stack
Be part of a collaborative team that values mentorship and engineering excellence

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More about this job

Responsibilities

The Infrastructure Architect will lead the design, engineering, and transformation of server, identity, cloud, and network infrastructure across a multi-site environment. They will also serve as a Tier 2/3 escalation point for complex technical issues and manage the integration of newly acquired dental practices.

Requirements

Candidates must have 7-8+ years of experience in systems or infrastructure engineering within a Microsoft-centric enterprise environment. A bachelor's degree in Information Technology or a related field is required, along with deep expertise in Azure, hybrid identity, and modern endpoint management.

Skills

Infrastructure Architecture
Windows Server
Active Directory
Entra ID
Microsoft Azure
Microsoft Intune
PowerShell
Network Engineering
Cloud Migration
Identity Management
Endpoint Management
System Administration
Incident Response
Infrastructure Automation
Technical Mentorship
M&A Integration

Visa sponsorship

Not detected in the job text

Keywords

Infrastructure Architect
Windows Server
Active Directory
Entra ID
Microsoft Intune
Microsoft 365
Azure
LAN/WAN
Firewall
PowerShell
Infrastructure-as-code
Hybrid Identity
MFA
RBAC
AZ-104
AZ-305
MD-102
SC-300
CCNA
Security+
ITIL
Cloud Migration
Endpoint Management
System Engineering
Disaster Recovery
ITSM
Virtualization
Network Refresh
Identity Modernization
Technical Documentation

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